Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ijimw...9..505e&link_type=abstract
International Journal of Infrared and Millimeter Waves (ISSN 0195-9271), vol. 9, June 1988, p. 505-520.
Astronomy and Astrophysics
Astronomy
5
Antenna Radiation Patterns, Horn Antennas, Microwave Antennas, Millimeter Waves, Sandwich Structures, Antenna Design, Frequency Response, Microwave Frequencies, Radio Astronomy, Scale Models, Semiconductor Junctions, Sis (Superconductors)
Scientific paper
At frequencies above a few hundred GHz, waveguide mixer blocks become extremely difficult to build, so open structure feeds may be more appropriate. One promising planar antenna structure, which can easily be integrated with SIS junctions, is the sandwiched V-antenna. The antenna is completely enclosed in dielectric by placing it between substrate and superstrate blocks. Using a model scaled to a center frequency of 10 Hz, the beam pattern is investigated as a function of frequency, and its dependence on gaps between the supersubstrates and substrates is measured. It is planned to test the structure at a frequency of 345 GHz and to compare it with waveguide horn antennas for possible use in submillimeter astronomical receivers. The antenna patterns and analysis in this work are substantially more extensive than earlier published results.
Eckart Andreas
Harris Andrew I.
Wohlleben Rudolph
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